@angular/ssr/third_party/beasties/index.js

Angular server side rendering utilities

function createNotImplementedError(name) {
  throw new Error(`[unenv] ${name} is not implemented yet!`);
}
function notImplemented(name) {
  const fn = () => {
    throw createNotImplementedError(name);
  };
  return Object.assign(fn, { __unenv__: true });
}

const access = notImplemented("fs.access");
const copyFile = notImplemented("fs.copyFile");
const cp = notImplemented("fs.cp");
const open = notImplemented("fs.open");
const opendir = notImplemented("fs.opendir");
const rename = notImplemented("fs.rename");
const truncate = notImplemented("fs.truncate");
const rm = notImplemented("fs.rm");
const rmdir = notImplemented("fs.rmdir");
const mkdir = notImplemented("fs.mkdir");
const readdir = notImplemented("fs.readdir");
const readlink = notImplemented("fs.readlink");
const symlink = notImplemented("fs.symlink");
const lstat = notImplemented("fs.lstat");
const stat = notImplemented("fs.stat");
const link = notImplemented("fs.link");
const unlink = notImplemented("fs.unlink");
const chmod = notImplemented("fs.chmod");
const lchmod = notImplemented("fs.lchmod");
const lchown = notImplemented("fs.lchown");
const chown = notImplemented("fs.chown");
const utimes = notImplemented("fs.utimes");
const lutimes = notImplemented("fs.lutimes");
const realpath = notImplemented("fs.realpath");
const mkdtemp = notImplemented("fs.mkdtemp");
const writeFile = notImplemented("fs.writeFile");
const appendFile = notImplemented("fs.appendFile");
const readFile$1 = notImplemented("fs.readFile");
notImplemented("fs.watch");
const statfs = notImplemented("fs.statfs");

function notImplementedAsync(name) {
  const fn = notImplemented(name);
  fn.__promisify__ = () => notImplemented(name + ".__promisify__");
  fn.native = fn;
  return fn;
}
function callbackify(fn) {
  const fnc = function(...args) {
    const cb = args.pop();
    fn().catch((error) => cb(error)).then((val) => cb(void 0, val));
  };
  fnc.__promisify__ = fn;
  fnc.native = fnc;
  return fnc;
}
callbackify(access);
callbackify(appendFile);
callbackify(chown);
callbackify(chmod);
callbackify(copyFile);
callbackify(cp);
callbackify(lchown);
callbackify(lchmod);
callbackify(link);
callbackify(lstat);
callbackify(lutimes);
callbackify(mkdir);
callbackify(mkdtemp);
callbackify(realpath);
callbackify(open);
callbackify(opendir);
callbackify(readdir);
const readFile = callbackify(readFile$1);
callbackify(readlink);
callbackify(rename);
callbackify(rm);
callbackify(rmdir);
callbackify(stat);
callbackify(symlink);
callbackify(truncate);
callbackify(unlink);
callbackify(utimes);
callbackify(writeFile);
callbackify(statfs);
notImplementedAsync("fs.close");
notImplementedAsync(
  "fs.createReadStream"
);
notImplementedAsync("fs.createWriteStream");
notImplementedAsync("fs.exists");
notImplementedAsync("fs.fchown");
notImplementedAsync("fs.fchmod");
notImplementedAsync("fs.fdatasync");
notImplementedAsync("fs.fstat");
notImplementedAsync("fs.fsync");
notImplementedAsync("fs.ftruncate");
notImplementedAsync("fs.futimes");
notImplementedAsync("fs.lstatSync");
notImplementedAsync("fs.read");
notImplementedAsync("fs.readv");
notImplementedAsync("fs.realpathSync");
notImplementedAsync("fs.statSync");
notImplementedAsync("fs.unwatchFile");
notImplementedAsync("fs.watch");
notImplementedAsync("fs.watchFile");
notImplementedAsync("fs.write");
notImplementedAsync("fs.writev");
notImplementedAsync("fs._toUnixTimestamp");
notImplementedAsync("fs.openAsBlob");
notImplemented("fs.appendFileSync");
notImplemented("fs.accessSync");
notImplemented("fs.chownSync");
notImplemented("fs.chmodSync");
notImplemented("fs.closeSync");
notImplemented("fs.copyFileSync");
notImplemented("fs.cpSync");
notImplemented("fs.fchownSync");
notImplemented("fs.fchmodSync");
notImplemented("fs.fdatasyncSync");
notImplemented("fs.fstatSync");
notImplemented("fs.fsyncSync");
notImplemented("fs.ftruncateSync");
notImplemented("fs.futimesSync");
notImplemented("fs.lchownSync");
notImplemented("fs.lchmodSync");
notImplemented("fs.linkSync");
notImplemented("fs.lutimesSync");
notImplemented("fs.mkdirSync");
notImplemented("fs.mkdtempSync");
notImplemented("fs.openSync");
notImplemented("fs.opendirSync");
notImplemented("fs.readdirSync");
notImplemented("fs.readSync");
notImplemented("fs.readvSync");
notImplemented("fs.readFileSync");
notImplemented("fs.readlinkSync");
notImplemented("fs.renameSync");
notImplemented("fs.rmSync");
notImplemented("fs.rmdirSync");
notImplemented("fs.symlinkSync");
notImplemented("fs.truncateSync");
notImplemented("fs.unlinkSync");
notImplemented("fs.utimesSync");
notImplemented("fs.writeFileSync");
notImplemented("fs.writeSync");
notImplemented("fs.writevSync");
notImplemented("fs.statfsSync");

const _DRIVE_LETTER_START_RE = /^[A-Za-z]:\//;
function normalizeWindowsPath(input = "") {
  if (!input) {
    return input;
  }
  return input.replace(/\\/g, "/").replace(_DRIVE_LETTER_START_RE, (r) => r.toUpperCase());
}

const _UNC_REGEX = /^[/\\]{2}/;
const _IS_ABSOLUTE_RE = /^[/\\](?![/\\])|^[/\\]{2}(?!\.)|^[A-Za-z]:[/\\]/;
const _DRIVE_LETTER_RE = /^[A-Za-z]:$/;
const _ROOT_FOLDER_RE = /^\/([A-Za-z]:)?$/;
const sep = "/";
const delimiter = ":";
const normalize = function(path) {
  if (path.length === 0) {
    return ".";
  }
  path = normalizeWindowsPath(path);
  const isUNCPath = path.match(_UNC_REGEX);
  const isPathAbsolute = isAbsolute(path);
  const trailingSeparator = path[path.length - 1] === "/";
  path = normalizeString(path, !isPathAbsolute);
  if (path.length === 0) {
    if (isPathAbsolute) {
      return "/";
    }
    return trailingSeparator ? "./" : ".";
  }
  if (trailingSeparator) {
    path += "/";
  }
  if (_DRIVE_LETTER_RE.test(path)) {
    path += "/";
  }
  if (isUNCPath) {
    if (!isPathAbsolute) {
      return `//./${path}`;
    }
    return `//${path}`;
  }
  return isPathAbsolute && !isAbsolute(path) ? `/${path}` : path;
};
const join = function(...arguments_) {
  if (arguments_.length === 0) {
    return ".";
  }
  let joined;
  for (const argument of arguments_) {
    if (argument && argument.length > 0) {
      if (joined === void 0) {
        joined = argument;
      } else {
        joined += `/${argument}`;
      }
    }
  }
  if (joined === void 0) {
    return ".";
  }
  return normalize(joined.replace(/\/\/+/g, "/"));
};
function cwd() {
  if (typeof process !== "undefined" && typeof process.cwd === "function") {
    return process.cwd().replace(/\\/g, "/");
  }
  return "/";
}
const resolve = function(...arguments_) {
  arguments_ = arguments_.map((argument) => normalizeWindowsPath(argument));
  let resolvedPath = "";
  let resolvedAbsolute = false;
  for (let index = arguments_.length - 1; index >= -1 && !resolvedAbsolute; index--) {
    const path = index >= 0 ? arguments_[index] : cwd();
    if (!path || path.length === 0) {
      continue;
    }
    resolvedPath = `${path}/${resolvedPath}`;
    resolvedAbsolute = isAbsolute(path);
  }
  resolvedPath = normalizeString(resolvedPath, !resolvedAbsolute);
  if (resolvedAbsolute && !isAbsolute(resolvedPath)) {
    return `/${resolvedPath}`;
  }
  return resolvedPath.length > 0 ? resolvedPath : ".";
};
function normalizeString(path, allowAboveRoot) {
  let res = "";
  let lastSegmentLength = 0;
  let lastSlash = -1;
  let dots = 0;
  let char = null;
  for (let index = 0; index <= path.length; ++index) {
    if (index < path.length) {
      char = path[index];
    } else if (char === "/") {
      break;
    } else {
      char = "/";
    }
    if (char === "/") {
      if (lastSlash === index - 1 || dots === 1) ; else if (dots === 2) {
        if (res.length < 2 || lastSegmentLength !== 2 || res[res.length - 1] !== "." || res[res.length - 2] !== ".") {
          if (res.length > 2) {
            const lastSlashIndex = res.lastIndexOf("/");
            if (lastSlashIndex === -1) {
              res = "";
              lastSegmentLength = 0;
            } else {
              res = res.slice(0, lastSlashIndex);
              lastSegmentLength = res.length - 1 - res.lastIndexOf("/");
            }
            lastSlash = index;
            dots = 0;
            continue;
          } else if (res.length > 0) {
            res = "";
            lastSegmentLength = 0;
            lastSlash = index;
            dots = 0;
            continue;
          }
        }
        if (allowAboveRoot) {
          res += res.length > 0 ? "/.." : "..";
          lastSegmentLength = 2;
        }
      } else {
        if (res.length > 0) {
          res += `/${path.slice(lastSlash + 1, index)}`;
        } else {
          res = path.slice(lastSlash + 1, index);
        }
        lastSegmentLength = index - lastSlash - 1;
      }
      lastSlash = index;
      dots = 0;
    } else if (char === "." && dots !== -1) {
      ++dots;
    } else {
      dots = -1;
    }
  }
  return res;
}
const isAbsolute = function(p) {
  return _IS_ABSOLUTE_RE.test(p);
};
const toNamespacedPath = function(p) {
  return normalizeWindowsPath(p);
};
const _EXTNAME_RE = /.(\.[^./]+)$/;
const extname = function(p) {
  const match = _EXTNAME_RE.exec(normalizeWindowsPath(p));
  return match && match[1] || "";
};
const relative = function(from, to) {
  const _from = resolve(from).replace(_ROOT_FOLDER_RE, "$1").split("/");
  const _to = resolve(to).replace(_ROOT_FOLDER_RE, "$1").split("/");
  if (_to[0][1] === ":" && _from[0][1] === ":" && _from[0] !== _to[0]) {
    return _to.join("/");
  }
  const _fromCopy = [..._from];
  for (const segment of _fromCopy) {
    if (_to[0] !== segment) {
      break;
    }
    _from.shift();
    _to.shift();
  }
  return [..._from.map(() => ".."), ..._to].join("/");
};
const dirname = function(p) {
  const segments = normalizeWindowsPath(p).replace(/\/$/, "").split("/").slice(0, -1);
  if (segments.length === 1 && _DRIVE_LETTER_RE.test(segments[0])) {
    segments[0] += "/";
  }
  return segments.join("/") || (isAbsolute(p) ? "/" : ".");
};
const format = function(p) {
  const segments = [p.root, p.dir, p.base ?? p.name + p.ext].filter(Boolean);
  return normalizeWindowsPath(
    p.root ? resolve(...segments) : segments.join("/")
  );
};
const basename = function(p, extension) {
  const lastSegment = normalizeWindowsPath(p).split("/").pop();
  return extension && lastSegment.endsWith(extension) ? lastSegment.slice(0, -extension.length) : lastSegment;
};
const parse$3 = function(p) {
  const root = normalizeWindowsPath(p).split("/").shift() || "/";
  const base = basename(p);
  const extension = extname(base);
  return {
    root,
    dir: dirname(p),
    base,
    ext: extension,
    name: base.slice(0, base.length - extension.length)
  };
};

const path = {
  __proto__: null,
  basename: basename,
  delimiter: delimiter,
  dirname: dirname,
  extname: extname,
  format: format,
  isAbsolute: isAbsolute,
  join: join,
  normalize: normalize,
  normalizeString: normalizeString,
  parse: parse$3,
  relative: relative,
  resolve: resolve,
  sep: sep,
  toNamespacedPath: toNamespacedPath
};

var _path = /*#__PURE__*/Object.freeze({
  __proto__: null,
  basename: basename,
  default: path,
  delimiter: delimiter,
  dirname: dirname,
  extname: extname,
  format: format,
  isAbsolute: isAbsolute,
  join: join,
  normalize: normalize,
  normalizeString: normalizeString,
  parse: parse$3,
  relative: relative,
  resolve: resolve,
  sep: sep,
  toNamespacedPath: toNamespacedPath
});

const _pathModule = {
  ..._path,
  platform: "posix",
  posix: void 0,
  win32: void 0
};
_pathModule.posix = _pathModule;
_pathModule.win32 = _pathModule;

function getDefaultExportFromCjs (x) {
	return x && x.__esModule && Object.prototype.hasOwnProperty.call(x, 'default') ? x['default'] : x;
}

function getAugmentedNamespace(n) {
  if (Object.prototype.hasOwnProperty.call(n, '__esModule')) return n;
  var f = n.default;
	if (typeof f == "function") {
		var a = function a () {
			if (this instanceof a) {
        return Reflect.construct(f, arguments, this.constructor);
			}
			return f.apply(this, arguments);
		};
		a.prototype = f.prototype;
  } else a = {};
  Object.defineProperty(a, '__esModule', {value: true});
	Object.keys(n).forEach(function (k) {
		var d = Object.getOwnPropertyDescriptor(n, k);
		Object.defineProperty(a, k, d.get ? d : {
			enumerable: true,
			get: function () {
				return n[k];
			}
		});
	});
	return a;
}

var picocolors_browser = {exports: {}};

var hasRequiredPicocolors_browser;

function requirePicocolors_browser () {
	if (hasRequiredPicocolors_browser) return picocolors_browser.exports;
	hasRequiredPicocolors_browser = 1;
	var x=String;
	var create=function() {return {isColorSupported:false,reset:x,bold:x,dim:x,italic:x,underline:x,inverse:x,hidden:x,strikethrough:x,black:x,red:x,green:x,yellow:x,blue:x,magenta:x,cyan:x,white:x,gray:x,bgBlack:x,bgRed:x,bgGreen:x,bgYellow:x,bgBlue:x,bgMagenta:x,bgCyan:x,bgWhite:x,blackBright:x,redBright:x,greenBright:x,yellowBright:x,blueBright:x,magentaBright:x,cyanBright:x,whiteBright:x,bgBlackBright:x,bgRedBright:x,bgGreenBright:x,bgYellowBright:x,bgBlueBright:x,bgMagentaBright:x,bgCyanBright:x,bgWhiteBright:x}};
	picocolors_browser.exports=create();
	picocolors_browser.exports.createColors = create;
	return picocolors_browser.exports;
}

var _nodeResolve_empty = {};

var _nodeResolve_empty$1 = /*#__PURE__*/Object.freeze({
  __proto__: null,
  default: _nodeResolve_empty
});

var require$$2 = /*@__PURE__*/getAugmentedNamespace(_nodeResolve_empty$1);

var cssSyntaxError;
var hasRequiredCssSyntaxError;

function requireCssSyntaxError () {
	if (hasRequiredCssSyntaxError) return cssSyntaxError;
	hasRequiredCssSyntaxError = 1;

	let pico = /*@__PURE__*/ requirePicocolors_browser();

	let terminalHighlight = require$$2;

	class CssSyntaxError extends Error {
	  constructor(message, line, column, source, file, plugin) {
	    super(message);
	    this.name = 'CssSyntaxError';
	    this.reason = message;

	    if (file) {
	      this.file = file;
	    }
	    if (source) {
	      this.source = source;
	    }
	    if (plugin) {
	      this.plugin = plugin;
	    }
	    if (typeof line !== 'undefined' && typeof column !== 'undefined') {
	      if (typeof line === 'number') {
	        this.line = line;
	        this.column = column;
	      } else {
	        this.line = line.line;
	        this.column = line.column;
	        this.endLine = column.line;
	        this.endColumn = column.column;
	      }
	    }

	    this.setMessage();

	    if (Error.captureStackTrace) {
	      Error.captureStackTrace(this, CssSyntaxError);
	    }
	  }

	  setMessage() {
	    this.message = this.plugin ? this.plugin + ': ' : '';
	    this.message += this.file ? this.file : '<css input>';
	    if (typeof this.line !== 'undefined') {
	      this.message += ':' + this.line + ':' + this.column;
	    }
	    this.message += ': ' + this.reason;
	  }

	  showSourceCode(color) {
	    if (!this.source) return ''

	    let css = this.source;
	    if (color == null) color = pico.isColorSupported;

	    let aside = text => text;
	    let mark = text => text;
	    let highlight = text => text;
	    if (color) {
	      let { bold, gray, red } = pico.createColors(true);
	      mark = text => bold(red(text));
	      aside = text => gray(text);
	      if (terminalHighlight) {
	        highlight = text => terminalHighlight(text);
	      }
	    }

	    let lines = css.split(/\r?\n/);
	    let start = Math.max(this.line - 3, 0);
	    let end = Math.min(this.line + 2, lines.length);
	    let maxWidth = String(end).length;

	    return lines
	      .slice(start, end)
	      .map((line, index) => {
	        let number = start + 1 + index;
	        let gutter = ' ' + (' ' + number).slice(-maxWidth) + ' | ';
	        if (number === this.line) {
	          if (line.length > 160) {
	            let padding = 20;
	            let subLineStart = Math.max(0, this.column - padding);
	            let subLineEnd = Math.max(
	              this.column + padding,
	              this.endColumn + padding
	            );
	            let subLine = line.slice(subLineStart, subLineEnd);

	            let spacing =
	              aside(gutter.replace(/\d/g, ' ')) +
	              line
	                .slice(0, Math.min(this.column - 1, padding - 1))
	                .replace(/[^\t]/g, ' ');

	            return (
	              mark('>') +
	              aside(gutter) +
	              highlight(subLine) +
	              '\n ' +
	              spacing +
	              mark('^')
	            )
	          }

	          let spacing =
	            aside(gutter.replace(/\d/g, ' ')) +
	            line.slice(0, this.column - 1).replace(/[^\t]/g, ' ');

	          return (
	            mark('>') +
	            aside(gutter) +
	            highlight(line) +
	            '\n ' +
	            spacing +
	            mark('^')
	          )
	        }

	        return ' ' + aside(gutter) + highlight(line)
	      })
	      .join('\n')
	  }

	  toString() {
	    let code = this.showSourceCode();
	    if (code) {
	      code = '\n\n' + code + '\n';
	    }
	    return this.name + ': ' + this.message + code
	  }
	}

	cssSyntaxError = CssSyntaxError;
	CssSyntaxError.default = CssSyntaxError;
	return cssSyntaxError;
}

var stringifier;
var hasRequiredStringifier;

function requireStringifier () {
	if (hasRequiredStringifier) return stringifier;
	hasRequiredStringifier = 1;

	const DEFAULT_RAW = {
	  after: '\n',
	  beforeClose: '\n',
	  beforeComment: '\n',
	  beforeDecl: '\n',
	  beforeOpen: ' ',
	  beforeRule: '\n',
	  colon: ': ',
	  commentLeft: ' ',
	  commentRight: ' ',
	  emptyBody: '',
	  indent: '    ',
	  semicolon: false
	};

	function capitalize(str) {
	  return str[0].toUpperCase() + str.slice(1)
	}

	class Stringifier {
	  constructor(builder) {
	    this.builder = builder;
	  }

	  atrule(node, semicolon) {
	    let name = '@' + node.name;
	    let params = node.params ? this.rawValue(node, 'params') : '';

	    if (typeof node.raws.afterName !== 'undefined') {
	      name += node.raws.afterName;
	    } else if (params) {
	      name += ' ';
	    }

	    if (node.nodes) {
	      this.block(node, name + params);
	    } else {
	      let end = (node.raws.between || '') + (semicolon ? ';' : '');
	      this.builder(name + params + end, node);
	    }
	  }

	  beforeAfter(node, detect) {
	    let value;
	    if (node.type === 'decl') {
	      value = this.raw(node, null, 'beforeDecl');
	    } else if (node.type === 'comment') {
	      value = this.raw(node, null, 'beforeComment');
	    } else if (detect === 'before') {
	      value = this.raw(node, null, 'beforeRule');
	    } else {
	      value = this.raw(node, null, 'beforeClose');
	    }

	    let buf = node.parent;
	    let depth = 0;
	    while (buf && buf.type !== 'root') {
	      depth += 1;
	      buf = buf.parent;
	    }

	    if (value.includes('\n')) {
	      let indent = this.raw(node, null, 'indent');
	      if (indent.length) {
	        for (let step = 0; step < depth; step++) value += indent;
	      }
	    }

	    return value
	  }

	  block(node, start) {
	    let between = this.raw(node, 'between', 'beforeOpen');
	    this.builder(start + between + '{', node, 'start');

	    let after;
	    if (node.nodes && node.nodes.length) {
	      this.body(node);
	      after = this.raw(node, 'after');
	    } else {
	      after = this.raw(node, 'after', 'emptyBody');
	    }

	    if (after) this.builder(after);
	    this.builder('}', node, 'end');
	  }

	  body(node) {
	    let last = node.nodes.length - 1;
	    while (last > 0) {
	      if (node.nodes[last].type !== 'comment') break
	      last -= 1;
	    }

	    let semicolon = this.raw(node, 'semicolon');
	    for (let i = 0; i < node.nodes.length; i++) {
	      let child = node.nodes[i];
	      let before = this.raw(child, 'before');
	      if (before) this.builder(before);
	      this.stringify(child, last !== i || semicolon);
	    }
	  }

	  comment(node) {
	    let left = this.raw(node, 'left', 'commentLeft');
	    let right = this.raw(node, 'right', 'commentRight');
	    this.builder('/*' + left + node.text + right + '*/', node);
	  }

	  decl(node, semicolon) {
	    let between = this.raw(node, 'between', 'colon');
	    let string = node.prop + between + this.rawValue(node, 'value');

	    if (node.important) {
	      string += node.raws.important || ' !important';
	    }

	    if (semicolon) string += ';';
	    this.builder(string, node);
	  }

	  document(node) {
	    this.body(node);
	  }

	  raw(node, own, detect) {
	    let value;
	    if (!detect) detect = own;

	    // Already had
	    if (own) {
	      value = node.raws[own];
	      if (typeof value !== 'undefined') return value
	    }

	    let parent = node.parent;

	    if (detect === 'before') {
	      // Hack for first rule in CSS
	      if (!parent || (parent.type === 'root' && parent.first === node)) {
	        return ''
	      }

	      // `root` nodes in `document` should use only their own raws
	      if (parent && parent.type === 'document') {
	        return ''
	      }
	    }

	    // Floating child without parent
	    if (!parent) return DEFAULT_RAW[detect]

	    // Detect style by other nodes
	    let root = node.root();
	    if (!root.rawCache) root.rawCache = {};
	    if (typeof root.rawCache[detect] !== 'undefined') {
	      return root.rawCache[detect]
	    }

	    if (detect === 'before' || detect === 'after') {
	      return this.beforeAfter(node, detect)
	    } else {
	      let method = 'raw' + capitalize(detect);
	      if (this[method]) {
	        value = this[method](root, node);
	      } else {
	        root.walk(i => {
	          value = i.raws[own];
	          if (typeof value !== 'undefined') return false
	        });
	      }
	    }

	    if (typeof value === 'undefined') value = DEFAULT_RAW[detect];

	    root.rawCache[detect] = value;
	    return value
	  }

	  rawBeforeClose(root) {
	    let value;
	    root.walk(i => {
	      if (i.nodes && i.nodes.length > 0) {
	        if (typeof i.raws.after !== 'undefined') {
	          value = i.raws.after;
	          if (value.includes('\n')) {
	            value = value.replace(/[^\n]+$/, '');
	          }
	          return false
	        }
	      }
	    });
	    if (value) value = value.replace(/\S/g, '');
	    return value
	  }

	  rawBeforeComment(root, node) {
	    let value;
	    root.walkComments(i => {
	      if (typeof i.raws.before !== 'undefined') {
	        value = i.raws.before;
	        if (value.includes('\n')) {
	          value = value.replace(/[^\n]+$/, '');
	        }
	        return false
	      }
	    });
	    if (typeof value === 'undefined') {
	      value = this.raw(node, null, 'beforeDecl');
	    } else if (value) {
	      value = value.replace(/\S/g, '');
	    }
	    return value
	  }

	  rawBeforeDecl(root, node) {
	    let value;
	    root.walkDecls(i => {
	      if (typeof i.raws.before !== 'undefined') {
	        value = i.raws.before;
	        if (value.includes('\n')) {
	          value = value.replace(/[^\n]+$/, '');
	        }
	        return false
	      }
	    });
	    if (typeof value === 'undefined') {
	      value = this.raw(node, null, 'beforeRule');
	    } else if (value) {
	      value = value.replace(/\S/g, '');
	    }
	    return value
	  }

	  rawBeforeOpen(root) {
	    let value;
	    root.walk(i => {
	      if (i.type !== 'decl') {
	        value = i.raws.between;
	        if (typeof value !== 'undefined') return false
	      }
	    });
	    return value
	  }

	  rawBeforeRule(root) {
	    let value;
	    root.walk(i => {
	      if (i.nodes && (i.parent !== root || root.first !== i)) {
	        if (typeof i.raws.before !== 'undefined') {
	          value = i.raws.before;
	          if (value.includes('\n')) {
	            value = value.replace(/[^\n]+$/, '');
	          }
	          return false
	        }
	      }
	    });
	    if (value) value = value.replace(/\S/g, '');
	    return value
	  }

	  rawColon(root) {
	    let value;
	    root.walkDecls(i => {
	      if (typeof i.raws.between !== 'undefined') {
	        value = i.raws.between.replace(/[^\s:]/g, '');
	        return false
	      }
	    });
	    return value
	  }

	  rawEmptyBody(root) {
	    let value;
	    root.walk(i => {
	      if (i.nodes && i.nodes.length === 0) {
	        value = i.raws.after;
	        if (typeof value !== 'undefined') return false
	      }
	    });
	    return value
	  }

	  rawIndent(root) {
	    if (root.raws.indent) return root.raws.indent
	    let value;
	    root.walk(i => {
	      let p = i.parent;
	      if (p && p !== root && p.parent && p.parent === root) {
	        if (typeof i.raws.before !== 'undefined') {
	          let parts = i.raws.before.split('\n');
	          value = parts[parts.length - 1];
	          value = value.replace(/\S/g, '');
	          return false
	        }
	      }
	    });
	    return value
	  }

	  rawSemicolon(root) {
	    let value;
	    root.walk(i => {
	      if (i.nodes && i.nodes.length && i.last.type === 'decl') {
	        value = i.raws.semicolon;
	        if (typeof value !== 'undefined') return false
	      }
	    });
	    return value
	  }

	  rawValue(node, prop) {
	    let value = node[prop];
	    let raw = node.raws[prop];
	    if (raw && raw.value === value) {
	      return raw.raw
	    }

	    return value
	  }

	  root(node) {
	    this.body(node);
	    if (node.raws.after) this.builder(node.raws.after);
	  }

	  rule(node) {
	    this.block(node, this.rawValue(node, 'selector'));
	    if (node.raws.ownSemicolon) {
	      this.builder(node.raws.ownSemicolon, node, 'end');
	    }
	  }

	  stringify(node, semicolon) {
	    /* c8 ignore start */
	    if (!this[node.type]) {
	      throw new Error(
	        'Unknown AST node type ' +
	          node.type +
	          '. ' +
	          'Maybe you need to change PostCSS stringifier.'
	      )
	    }
	    /* c8 ignore stop */
	    this[node.type](node, semicolon);
	  }
	}

	stringifier = Stringifier;
	Stringifier.default = Stringifier;
	return stringifier;
}

var stringify_1;
var hasRequiredStringify;

function requireStringify () {
	if (hasRequiredStringify) return stringify_1;
	hasRequiredStringify = 1;

	let Stringifier = requireStringifier();

	function stringify(node, builder) {
	  let str = new Stringifier(builder);
	  str.stringify(node);
	}

	stringify_1 = stringify;
	stringify.default = stringify;
	return stringify_1;
}

var symbols = {};

var hasRequiredSymbols;

function requireSymbols () {
	if (hasRequiredSymbols) return symbols;
	hasRequiredSymbols = 1;

	symbols.isClean = Symbol('isClean');

	symbols.my = Symbol('my');
	return symbols;
}

var node;
var hasRequiredNode$1;

function requireNode$1 () {
	if (hasRequiredNode$1) return node;
	hasRequiredNode$1 = 1;

	let CssSyntaxError = requireCssSyntaxError();
	let Stringifier = requireStringifier();
	let stringify = requireStringify();
	let { isClean, my } = requireSymbols();

	function cloneNode(obj, parent) {
	  let cloned = new obj.constructor();

	  for (let i in obj) {
	    if (!Object.prototype.hasOwnProperty.call(obj, i)) {
	      /* c8 ignore next 2 */
	      continue
	    }
	    if (i === 'proxyCache') continue
	    let value = obj[i];
	    let type = typeof value;

	    if (i === 'parent' && type === 'object') {
	      if (parent) cloned[i] = parent;
	    } else if (i === 'source') {
	      cloned[i] = value;
	    } else if (Array.isArray(value)) {
	      cloned[i] = value.map(j => cloneNode(j, cloned));
	    } else {
	      if (type === 'object' && value !== null) value = cloneNode(value);
	      cloned[i] = value;
	    }
	  }

	  return cloned
	}

	function sourceOffset(inputCSS, position) {
	  // Not all custom syntaxes support `offset` in `source.start` and `source.end`
	  if (
	    position &&
	    typeof position.offset !== 'undefined'
	  ) {
	    return position.offset;
	  }

	  let column = 1;
	  let line = 1;
	  let offset = 0;

	  for (let i = 0; i < inputCSS.length; i++) {
	    if (line === position.line && column === position.column) {
	      offset = i;
	      break
	    }

	    if (inputCSS[i] === '\n') {
	      column = 1;
	      line += 1;
	    } else {
	      column += 1;
	    }
	  }

	  return offset
	}

	class Node {
	  get proxyOf() {
	    return this
	  }

	  constructor(defaults = {}) {
	    this.raws = {};
	    this[isClean] = false;
	    this[my] = true;

	    for (let name in defaults) {
	      if (name === 'nodes') {
	        this.nodes = [];
	        for (let node of defaults[name]) {
	          if (typeof node.clone === 'function') {
	            this.append(node.clone());
	          } else {
	            this.append(node);
	          }
	        }
	      } else {
	        this[name] = defaults[name];
	      }
	    }
	  }

	  addToError(error) {
	    error.postcssNode = this;
	    if (error.stack && this.source && /\n\s{4}at /.test(error.stack)) {
	      let s = this.source;
	      error.stack = error.stack.replace(
	        /\n\s{4}at /,
	        `$&${s.input.from}:${s.start.line}:${s.start.column}$&`
	      );
	    }
	    return error
	  }

	  after(add) {
	    this.parent.insertAfter(this, add);
	    return this
	  }

	  assign(overrides = {}) {
	    for (let name in overrides) {
	      this[name] = overrides[name];
	    }
	    return this
	  }

	  before(add) {
	    this.parent.insertBefore(this, add);
	    return this
	  }

	  cleanRaws(keepBetween) {
	    delete this.raws.before;
	    delete this.raws.after;
	    if (!keepBetween) delete this.raws.between;
	  }

	  clone(overrides = {}) {
	    let cloned = cloneNode(this);
	    for (let name in overrides) {
	      cloned[name] = overrides[name];
	    }
	    return cloned
	  }

	  cloneAfter(overrides = {}) {
	    let cloned = this.clone(overrides);
	    this.parent.insertAfter(this, cloned);
	    return cloned
	  }

	  cloneBefore(overrides = {}) {
	    let cloned = this.clone(overrides);
	    this.parent.insertBefore(this, cloned);
	    return cloned
	  }

	  error(message, opts = {}) {
	    if (this.source) {
	      let { end, start } = this.rangeBy(opts);
	      return this.source.input.error(
	        message,
	        { column: start.column, line: start.line },
	        { column: end.column, line: end.line },
	        opts
	      )
	    }
	    return new CssSyntaxError(message)
	  }

	  getProxyProcessor() {
	    return {
	      get(node, prop) {
	        if (prop === 'proxyOf') {
	          return node
	        } else if (prop === 'root') {
	          return () => node.root().toProxy()
	        } else {
	          return node[prop]
	        }
	      },

	      set(node, prop, value) {
	        if (node[prop] === value) return true
	        node[prop] = value;
	        if (
	          prop === 'prop' ||
	          prop === 'value' ||
	          prop === 'name' ||
	          prop === 'params' ||
	          prop === 'important' ||
	          /* c8 ignore next */
	          prop === 'text'
	        ) {
	          node.markDirty();
	        }
	        return true
	      }
	    }
	  }

	  /* c8 ignore next 3 */
	  markClean() {
	    this[isClean] = true;
	  }

	  markDirty() {
	    if (this[isClean]) {
	      this[isClean] = false;
	      let next = this;
	      while ((next = next.parent)) {
	        next[isClean] = false;
	      }
	    }
	  }

	  next() {
	    if (!this.parent) return undefined
	    let index = this.parent.index(this);
	    return this.parent.nodes[index + 1]
	  }

	  positionBy(opts) {
	    let pos = this.source.start;
	    if (opts.index) {
	      pos = this.positionInside(opts.index);
	    } else if (opts.word) {
	      let inputString = ('document' in this.source.input)
	        ? this.source.input.document
	        : this.source.input.css;
	      let stringRepresentation = inputString.slice(
	        sourceOffset(inputString, this.source.start),
	        sourceOffset(inputString, this.source.end)
	      );
	      let index = stringRepresentation.indexOf(opts.word);
	      if (index !== -1) pos = this.positionInside(index);
	    }
	    return pos
	  }

	  positionInside(index) {
	    let column = this.source.start.column;
	    let line = this.source.start.line;
	    let inputString = ('document' in this.source.input)
	      ? this.source.input.document
	      : this.source.input.css;
	    let offset = sourceOffset(inputString, this.source.start);
	    let end = offset + index;

	    for (let i = offset; i < end; i++) {
	      if (inputString[i] === '\n') {
	        column = 1;
	        line += 1;
	      } else {
	        column += 1;
	      }
	    }

	    return { column, line }
	  }

	  prev() {
	    if (!this.parent) return undefined
	    let index = this.parent.index(this);
	    return this.parent.nodes[index - 1]
	  }

	  rangeBy(opts) {
	    let start = {
	      column: this.source.start.column,
	      line: this.source.start.line
	    };
	    let end = this.source.end
	      ? {
	          column: this.source.end.column + 1,
	          line: this.source.end.line
	        }
	      : {
	          column: start.column + 1,
	          line: start.line
	        };

	    if (opts.word) {
	      let inputString = ('document' in this.source.input)
	        ? this.source.input.document
	        : this.source.input.css;
	      let stringRepresentation = inputString.slice(
	        sourceOffset(inputString, this.source.start),
	        sourceOffset(inputString, this.source.end)
	      );
	      let index = stringRepresentation.indexOf(opts.word);
	      if (index !== -1) {
	        start = this.positionInside(index);
	        end = this.positionInside(
	          index + opts.word.length,
	        );
	      }
	    } else {
	      if (opts.start) {
	        start = {
	          column: opts.start.column,
	          line: opts.start.line
	        };
	      } else if (opts.index) {
	        start = this.positionInside(opts.index);
	      }

	      if (opts.end) {
	        end = {
	          column: opts.end.column,
	          line: opts.end.line
	        };
	      } else if (typeof opts.endIndex === 'number') {
	        end = this.positionInside(opts.endIndex);
	      } else if (opts.index) {
	        end = this.positionInside(opts.index + 1);
	      }
	    }

	    if (
	      end.line < start.line ||
	      (end.line === start.line && end.column <= start.column)
	    ) {
	      end = { column: start.column + 1, line: start.line };
	    }

	    return { end, start }
	  }

	  raw(prop, defaultType) {
	    let str = new Stringifier();
	    return str.raw(this, prop, defaultType)
	  }

	  remove() {
	    if (this.parent) {
	      this.parent.removeChild(this);
	    }
	    this.parent = undefined;
	    return this
	  }

	  replaceWith(...nodes) {
	    if (this.parent) {
	      let bookmark = this;
	      let foundSelf = false;
	      for (let node of nodes) {
	        if (node === this) {
	          foundSelf = true;
	        } else if (foundSelf) {
	          this.parent.insertAfter(bookmark, node);
	          bookmark = node;
	        } else {
	          this.parent.insertBefore(bookmark, node);
	        }
	      }

	      if (!foundSelf) {
	        this.remove();
	      }
	    }

	    return this
	  }

	  root() {
	    let result = this;
	    while (result.parent && result.parent.type !== 'document') {
	      result = result.parent;
	    }
	    return result
	  }

	  toJSON(_, inputs) {
	    let fixed = {};
	    let emitInputs = inputs == null;
	    inputs = inputs || new Map();
	    let inputsNextIndex = 0;

	    for (let name in this) {
	      if (!Object.prototype.hasOwnProperty.call(this, name)) {
	        /* c8 ignore next 2 */
	        continue
	      }
	      if (name === 'parent' || name === 'proxyCache') continue
	      let value = this[name];

	      if (Array.isArray(value)) {
	        fixed[name] = value.map(i => {
	          if (typeof i === 'object' && i.toJSON) {
	            return i.toJSON(null, inputs)
	          } else {
	            return i
	          }
	        });
	      } else if (typeof value === 'object' && value.toJSON) {
	        fixed[name] = value.toJSON(null, inputs);
	      } else if (name === 'source') {
	        let inputId = inputs.get(value.input);
	        if (inputId == null) {
	          inputId = inputsNextIndex;
	          inputs.set(value.input, inputsNextIndex);
	          inputsNextIndex++;
	        }
	        fixed[name] = {
	          end: value.end,
	          inputId,
	          start: value.start
	        };
	      } else {
	        fixed[name] = value;
	      }
	    }

	    if (emitInputs) {
	      fixed.inputs = [...inputs.keys()].map(input => input.toJSON());
	    }

	    return fixed
	  }

	  toProxy() {
	    if (!this.proxyCache) {
	      this.proxyCache = new Proxy(this, this.getProxyProcessor());
	    }
	    return this.proxyCache
	  }

	  toString(stringifier = stringify) {
	    if (stringifier.stringify) stringifier = stringifier.stringify;
	    let result = '';
	    stringifier(this, i => {
	      result += i;
	    });
	    return result
	  }

	  warn(result, text, opts) {
	    let data = { node: this };
	    for (let i in opts) data[i] = opts[i];
	    return result.warn(text, data)
	  }
	}

	node = Node;
	Node.default = Node;
	return node;
}

var comment;
var hasRequiredComment;

function requireComment () {
	if (hasRequiredComment) return comment;
	hasRequiredComment = 1;

	let Node = requireNode$1();

	class Comment extends Node {
	  constructor(defaults) {
	    super(defaults);
	    this.type = 'comment';
	  }
	}

	comment = Comment;
	Comment.default = Comment;
	return comment;
}

var declaration;
var hasRequiredDeclaration;

function requireDeclaration () {
	if (hasRequiredDeclaration) return declaration;
	hasRequiredDeclaration = 1;

	let Node = requireNode$1();

	class Declaration extends Node {
	  get variable() {
	    return this.prop.startsWith('--') || this.prop[0] === '$'
	  }

	  constructor(defaults) {
	    if (
	      defaults &&
	      typeof defaults.value !== 'undefined' &&
	      typeof defaults.value !== 'string'
	    ) {
	      defaults = { ...defaults, value: String(defaults.value) };
	    }
	    super(defaults);
	    this.type = 'decl';
	  }
	}

	declaration = Declaration;
	Declaration.default = Declaration;
	return declaration;
}

var container;
var hasRequiredContainer$1;

function requireContainer$1 () {
	if (hasRequiredContainer$1) return container;
	hasRequiredContainer$1 = 1;

	let Comment = requireComment();
	let Declaration = requireDeclaration();
	let Node = requireNode$1();
	let { isClean, my } = requireSymbols();

	let AtRule, parse, Root, Rule;

	function cleanSource(nodes) {
	  return nodes.map(i => {
	    if (i.nodes) i.nodes = cleanSource(i.nodes);
	    delete i.source;
	    return i
	  })
	}

	function markTreeDirty(node) {
	  node[isClean] = false;
	  if (node.proxyOf.nodes) {
	    for (let i of node.proxyOf.nodes) {
	      markTreeDirty(i);
	    }
	  }
	}

	class Container extends Node {
	  get first() {
	    if (!this.proxyOf.nodes) return undefined
	    return this.proxyOf.nodes[0]
	  }

	  get last() {
	    if (!this.proxyOf.nodes) return undefined
	    return this.proxyOf.nodes[this.proxyOf.nodes.length - 1]
	  }

	  append(...children) {
	    for (let child of children) {
	      let nodes = this.normalize(child, this.last);
	      for (let node of nodes) this.proxyOf.nodes.push(node);
	    }

	    this.markDirty();

	    return this
	  }

	  cleanRaws(keepBetween) {
	    super.cleanRaws(keepBetween);
	    if (this.nodes) {
	      for (let node of this.nodes) node.cleanRaws(keepBetween);
	    }
	  }

	  each(callback) {
	    if (!this.proxyOf.nodes) return undefined
	    let iterator = this.getIterator();

	    let index, result;
	    while (this.indexes[iterator] < this.proxyOf.nodes.length) {
	      index = this.indexes[iterator];
	      result = callback(this.proxyOf.nodes[index], index);
	      if (result === false) break

	      this.indexes[iterator] += 1;
	    }

	    delete this.indexes[iterator];
	    return result
	  }

	  every(condition) {
	    return this.nodes.every(condition)
	  }

	  getIterator() {
	    if (!this.lastEach) this.lastEach = 0;
	    if (!this.indexes) this.indexes = {};

	    this.lastEach += 1;
	    let iterator = this.lastEach;
	    this.indexes[iterator] = 0;

	    return iterator
	  }

	  getProxyProcessor() {
	    return {
	      get(node, prop) {
	        if (prop === 'proxyOf') {
	          return node
	        } else if (!node[prop]) {
	          return node[prop]
	        } else if (
	          prop === 'each' ||
	          (typeof prop === 'string' && prop.startsWith('walk'))
	        ) {
	          return (...args) => {
	            return node[prop](
	              ...args.map(i => {
	                if (typeof i === 'function') {
	                  return (child, index) => i(child.toProxy(), index)
	                } else {
	                  return i
	                }
	              })
	            )
	          }
	        } else if (prop === 'every' || prop === 'some') {
	          return cb => {
	            return node[prop]((child, ...other) =>
	              cb(child.toProxy(), ...other)
	            )
	          }
	        } else if (prop === 'root') {
	          return () => node.root().toProxy()
	        } else if (prop === 'nodes') {
	          return node.nodes.map(i => i.toProxy())
	        } else if (prop === 'first' || prop === 'last') {
	          return node[prop].toProxy()
	        } else {
	          return node[prop]
	        }
	      },

	      set(node, prop, value) {
	        if (node[prop] === value) return true
	        node[prop] = value;
	        if (prop === 'name' || prop === 'params' || prop === 'selector') {
	          node.markDirty();
	        }
	        return true
	      }
	    }
	  }

	  index(child) {
	    if (typeof child === 'number') return child
	    if (child.proxyOf) child = child.proxyOf;
	    return this.proxyOf.nodes.indexOf(child)
	  }

	  insertAfter(exist, add) {
	    let existIndex = this.index(exist);
	    let nodes = this.normalize(add, this.proxyOf.nodes[existIndex]).reverse();
	    existIndex = this.index(exist);
	    for (let node of nodes) this.proxyOf.nodes.splice(existIndex + 1, 0, node);

	    let index;
	    for (let id in this.indexes) {
	      index = this.indexes[id];
	      if (existIndex < index) {
	        this.indexes[id] = index + nodes.length;
	      }
	    }

	    this.markDirty();

	    return this
	  }

	  insertBefore(exist, add) {
	    let existIndex = this.index(exist);
	    let type = existIndex === 0 ? 'prepend' : false;
	    let nodes = this.normalize(
	      add,
	      this.proxyOf.nodes[existIndex],
	      type
	    ).reverse();
	    existIndex = this.index(exist);
	    for (let node of nodes) this.proxyOf.nodes.splice(existIndex, 0, node);

	    let index;
	    for (let id in this.indexes) {
	      index = this.indexes[id];
	      if (existIndex <= index) {
	        this.indexes[id] = index + nodes.length;
	      }
	    }

	    this.markDirty();

	    return this
	  }

	  normalize(nodes, sample) {
	    if (typeof nodes === 'string') {
	      nodes = cleanSource(parse(nodes).nodes);
	    } else if (typeof nodes === 'undefined') {
	      nodes = [];
	    } else if (Array.isArray(nodes)) {
	      nodes = nodes.slice(0);
	      for (let i of nodes) {
	        if (i.parent) i.parent.removeChild(i, 'ignore');
	      }
	    } else if (nodes.type === 'root' && this.type !== 'document') {
	      nodes = nodes.nodes.slice(0);
	      for (let i of nodes) {
	        if (i.parent) i.parent.removeChild(i, 'ignore');
	      }
	    } else if (nodes.type) {
	      nodes = [nodes];
	    } else if (nodes.prop) {
	      if (typeof nodes.value === 'undefined') {
	        throw new Error('Value field is missed in node creation')
	      } else if (typeof nodes.value !== 'string') {
	        nodes.value = String(nodes.value);
	      }
	      nodes = [new Declaration(nodes)];
	    } else if (nodes.selector || nodes.selectors) {
	      nodes = [new Rule(nodes)];
	    } else if (nodes.name) {
	      nodes = [new AtRule(nodes)];
	    } else if (nodes.text) {
	      nodes = [new Comment(nodes)];
	    } else {
	      throw new Error('Unknown node type in node creation')
	    }

	    let processed = nodes.map(i => {
	      /* c8 ignore next */
	      if (!i[my]) Container.rebuild(i);
	      i = i.proxyOf;
	      if (i.parent) i.parent.removeChild(i);
	      if (i[isClean]) markTreeDirty(i);

	      if (!i.raws) i.raws = {};
	      if (typeof i.raws.before === 'undefined') {
	        if (sample && typeof sample.raws.before !== 'undefined') {
	          i.raws.before = sample.raws.before.replace(/\S/g, '');
	        }
	      }
	      i.parent = this.proxyOf;
	      return i
	    });

	    return processed
	  }

	  prepend(...children) {
	    children = children.reverse();
	    for (let child of children) {
	      let nodes = this.normalize(child, this.first, 'prepend').reverse();
	      for (let node of nodes) this.proxyOf.nodes.unshift(node);
	      for (let id in this.indexes) {
	        this.indexes[id] = this.indexes[id] + nodes.length;
	      }
	    }

	    this.markDirty();

	    return this
	  }

	  push(child) {
	    child.parent = this;
	    this.proxyOf.nodes.push(child);
	    return this
	  }

	  removeAll() {
	    for (let node of this.proxyOf.nodes) node.parent = undefined;
	    this.proxyOf.nodes = [];

	    this.markDirty();

	    return this
	  }

	  removeChild(child) {
	    child = this.index(child);
	    this.proxyOf.nodes[child].parent = undefined;
	    this.proxyOf.nodes.splice(child, 1);

	    let index;
	    for (let id in this.indexes) {
	      index = this.indexes[id];
	      if (index >= child) {
	        this.indexes[id] = index - 1;
	      }
	    }

	    this.markDirty();

	    return this
	  }

	  replaceValues(pattern, opts, callback) {
	    if (!callback) {
	      callback = opts;
	      opts = {};
	    }

	    this.walkDecls(decl => {
	      if (opts.props && !opts.props.includes(decl.prop)) return
	      if (opts.fast && !decl.value.includes(opts.fast)) return

	      decl.value = decl.value.replace(pattern, callback);
	    });

	    this.markDirty();

	    return this
	  }

	  some(condition) {
	    return this.nodes.some(condition)
	  }

	  walk(callback) {
	    return this.each((child, i) => {
	      let result;
	      try {
	        result = callback(child, i);
	      } catch (e) {
	        throw child.addToError(e)
	      }
	      if (result !== false && child.walk) {
	        result = child.walk(callback);
	      }

	      return result
	    })
	  }

	  walkAtRules(name, callback) {
	    if (!callback) {
	      callback = name;
	      return this.walk((child, i) => {
	        if (child.type === 'atrule') {
	          return callback(child, i)
	        }
	      })
	    }
	    if (name instanceof RegExp) {
	      return this.walk((child, i) => {
	        if (child.type === 'atrule' && name.test(child.name)) {
	          return callback(child, i)
	        }
	      })
	    }
	    return this.walk((child, i) => {
	      if (child.type === 'atrule' && child.name === name) {
	        return callback(child, i)
	      }
	    })
	  }

	  walkComments(callback) {
	    return this.walk((child, i) => {
	      if (child.type === 'comment') {
	        return callback(child, i)
	      }
	    })
	  }

	  walkDecls(prop, callback) {
	    if (!callback) {
	      callback = prop;
	      return this.walk((child, i) => {
	        if (child.type === 'decl') {
	          return callback(child, i)
	        }
	      })
	    }
	    if (prop instanceof RegExp) {
	      return this.walk((child, i) => {
	        if (child.type === 'decl' && prop.test(child.prop)) {
	          return callback(child, i)
	        }
	      })
	    }
	    return this.walk((child, i) => {
	      if (child.type === 'decl' && child.prop === prop) {
	        return callback(child, i)
	      }
	    })
	  }

	  walkRules(selector, callback) {
	    if (!callback) {
	      callback = selector;

	      return this.walk((child, i) => {
	        if (child.type === 'rule') {
	          return callback(child, i)
	        }
	      })
	    }
	    if (selector instanceof RegExp) {
	      return this.walk((child, i) => {
	        if (child.type === 'rule' && selector.test(child.selector)) {
	          return callback(child, i)
	        }
	      })
	    }
	    return this.walk((child, i) => {
	      if (child.type === 'rule' && child.selector === selector) {
	        return callback(child, i)
	      }
	    })
	  }
	}

	Container.registerParse = dependant => {
	  parse = dependant;
	};

	Container.registerRule = dependant => {
	  Rule = dependant;
	};

	Container.registerAtRule = dependant => {
	  AtRule = dependant;
	};

	Container.registerRoot = dependant => {
	  Root = dependant;
	};

	container = Container;
	Container.default = Container;

	/* c8 ignore start */
	Container.rebuild = node => {
	  if (node.type === 'atrule') {
	    Object.setPrototypeOf(node, AtRule.prototype);
	  } else if (node.type === 'rule') {
	    Object.setPrototypeOf(node, Rule.prototype);
	  } else if (node.type === 'decl') {
	    Object.setPrototypeOf(node, Declaration.prototype);
	  } else if (node.type === 'comment') {
	    Object.setPrototypeOf(node, Comment.prototype);
	  } else if (node.type === 'root') {
	    Object.setPrototypeOf(node, Root.prototype);
	  }

	  node[my] = true;

	  if (node.nodes) {
	    node.nodes.forEach(child => {
	      Container.rebuild(child);
	    });
	  }
	};
	/* c8 ignore stop */
	return container;
}

var atRule;
var hasRequiredAtRule;

function requireAtRule () {
	if (hasRequiredAtRule) return atRule;
	hasRequiredAtRule = 1;

	let Container = requireContainer$1();

	class AtRule extends Container {
	  constructor(defaults) {
	    super(defaults);
	    this.type = 'atrule';
	  }

	  append(...children) {
	    if (!this.proxyOf.nodes) this.nodes = [];
	    return super.append(...children)
	  }

	  prepend(...children) {
	    if (!this.proxyOf.nodes) this.nodes = [];
	    return super.prepend(...children)
	  }
	}

	atRule = AtRule;
	AtRule.default = AtRule;

	Container.regist